Book Image

WordPress Plugin Development Cookbook - Third Edition

By : Yannick Lefebvre
Book Image

WordPress Plugin Development Cookbook - Third Edition

By: Yannick Lefebvre

Overview of this book

WordPress is one of the most widely used, powerful, and open content management systems (CMSs). Whether you're a site owner trying to find the right extension, a developer who wants to contribute to the community, or a website developer working to fulfill a client's needs, learning how to extend WordPress' capabilities will help you to unleash its full potential. This book will help you become familiar with API functions to create secure plugins with easy-to-use administration interfaces. This third edition contains new recipes and up-to-date code samples, including new chapters on creating custom blocks for the block editor and integrating data from external sources. From one chapter to the next, you’ll learn how to create plugins of varying complexity, ranging from a few lines of code to complex extensions that provide intricate new capabilities. You'll start by using the basic mechanisms provided in WordPress to create plugins, followed by recipes covering how to design administration panels, enhance the post editor with custom fields, store custom data, and even create custom blocks. You'll safely incorporate dynamic elements into web pages using scripting languages, learn how to integrate data from external sources, and build new widgets that users will be able to add to WordPress sidebars and widget areas. By the end of this book, you will be able to create WordPress plugins to perform any task you can imagine.
Table of Contents (15 chapters)

Installing a local web server on your computer

The first step to preparing a local development environment is to install a local web server on your computer. This will transform your computer into a system capable of running the core WordPress code and performing all tasks related to rendering a WordPress website locally.

Having a local web server has many benefits:

  • It provides a quick response to the frequent page refreshes that are made as plugin code is written, tested, and refined, since all information is processed locally.
  • It removes the need to constantly upload new plugin file versions to a remote web server to validate code changes.
  • It allows development to take place when no internet connection is available (for example, when traveling on an airplane). This is only possible if your plugin code does not interact with external servers.
  • It offers a worry-free programming environment where you cannot bring down a live website with a programming error or...